Title:
THICK STEEL SHEET AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/184162
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a thick steel sheet having excellent deformation characteristics at a center portion in the thickness direction thereof; and a production method therefor. This thick steel sheet is characterized by having a component composition containing, in mass%, 0.01-0.15% of C, 0.01-1.00% of Si, 0.10-2.00% of Mn, 0.010% or less of P, 0.0050% or less of S, 0.002-0.100% of Al, 5.0-10.0% of Ni, and 0.0010-0.0080% of N, the balance being Fe and incidental impurities, and having a tensile reduction of area of 30% or more in the thickness direction thereof at a center portion thereof in the thickness direction.
Inventors:
SATO YUYA (JP)
KITSUYA SHIGEKI (JP)
OTA SHUSAKU (JP)
YOKOTA TOMOYUKI (JP)
KITSUYA SHIGEKI (JP)
OTA SHUSAKU (JP)
YOKOTA TOMOYUKI (JP)
Application Number:
PCT/JP2020/007377
Publication Date:
September 17, 2020
Filing Date:
February 25, 2020
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/02; C22C38/00; C22C38/08; C22C38/60
Domestic Patent References:
| WO2014203347A1 | 2014-12-24 | |||
| WO2013046357A1 | 2013-04-04 | |||
| WO2007034576A1 | 2007-03-29 | |||
| WO2007080646A1 | 2007-07-19 |
Foreign References:
| JPH1128501A | 1999-02-02 | |||
| CN102586696A | 2012-07-18 | |||
| JP2011241419A | 2011-12-01 |
Other References:
See also references of EP 3916112A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
Download PDF: